GATE Questions & Answers of Time Domain Analysis of Simple Linear Circuits

The following arrangement consists of an ideal transformer and an attenuator which attenuates by a factor of 0.8. An ac voltage V_WX1 = 100V is applied across WX to get an open circuit voltage V_YZ1  across YZ. Next, an ac voltage V_YZ2 =100V is applied across YZ to get an open circuit voltage V_WX2 across WX. Then, V_YZ1 / V_WX1, V_WX2 / V_YZ2 are respectively,

•  (A) 125/100 and 80/100
•  (B) 100/100 and 80/100
•  (C) 100/100 and 100/100
•  (D) 80/100 and 80/100

Consider the following figure

The current I_S in Amps in the voltage source, and voltage V_S in Volts across the current source respectively, are

•  (A) 13, - 20
•  (B) 8, - 10
•  (C) - 8, 20
•  (D) - 13, 20

Consider the following figure

The current in the 1 $\Omega$ resistor in Amps is

•  (A) 2
•  (B) 3.33
•  (C) 10
•  (D) 12